San Francisco, California
London, United Kingdom
When & Where
Marshall has worked with many different champions, but his most accomplished work has been taking Kermit Cintron in 1999 and guiding and training him to a World Title Challenge on PPV against Antonio Margarito. Then taking his son Travis Kauffman and leading him to be the #1 Amateur in the US.
Marshall has also trained Hasim Rahman, Tarvis Simms and many other great professionals.